<template>
  <div class="recommend" ref="recommend">
    <scroll class="recommend-content" ref="scroll" :data="discList">
      <div>
        <div v-if="sliders.length" class="slider-wrapper">
          <swiper :options="swiperOption" ref="mySwiper" @someSwiperEvent="callback">
            <!-- slides -->
            <swiper-slide v-for="(item, index) in sliders" :key="index">
              <a :href="item.linkUrl">
                <img @load="loadImage" :src="item.picUrl" alt="">
              </a>
            </swiper-slide>
            <!-- Optional controls -->
            <div class="swiper-pagination"  slot="pagination"></div>
          </swiper>
        </div>
        <div class="recommend-list">
          <h1 class="list-title">热门歌单推荐</h1>
          <ul>
            <li class="item" v-for="(item, index) in discList" :key="index">
              <div class="icon">
                <img width="60" v-lazy="item.imgurl" height="60">
              </div>
              <div class="text">
                <h2 class="name">{{item.creator.name}}</h2>
                <p class="desc">{{item.dissname}}</p>
              </div>
            </li>
          </ul>
        </div>
      </div>
      <div class="loading-container" v-show="!discList.length">
        <loading title="推荐列表加载中"></loading>
      </div>
    </scroll>
  </div>
</template>

<script type="text/ecmascript-6">
import Scroll from 'base/scroll/scroll'
import Loading from 'base/loading/loading'
import {getRecommend, getDiscList} from 'api/recommend'
import {REQ_SUCCESS} from 'api/config'
import { swiper, swiperSlide } from 'vue-awesome-swiper'
export default {
  data () {
    return {
      songList: [],
      sliders: [],
      discList: [],
      swiperOption: {
        // some swiper options/callbacks
        // 所有的参数同 swiper 官方 api 参数
        // ...
        pagination: {
          el: '.swiper-pagination'
        },
        loop: true,
        autoplay: {
          delay: 3000
        }
      }
    }
  },
  components: {
    swiper,
    swiperSlide,
    Scroll,
    Loading
  },
  created () {
    this._getRecommend()
    this._getDiscList()
  },
  methods: {
    _getRecommend () {
      getRecommend().then((res) => {
        if (res.code === REQ_SUCCESS) {
          this.songList = res.data.songList
          this.sliders = res.data.slider
        }
      })
    },
    _getDiscList() {
      getDiscList().then((res) => {
        if (res.code === REQ_SUCCESS) {
          this.discList = res.data.list
        }
      })
    },
    callback () {
      console.log(1)
    },
    loadImage () {
      if (!this.checkLoaded) {
        this.$refs.scroll.refresh()
        this.checkLoaded = true
      }
    }
  }
}
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import "~common/stylus/variable"

  .recommend
    position: fixed
    width: 100%
    top: 88px
    bottom: 0
    .recommend-content
      height: 100%
      overflow: hidden
      .slider-wrapper
        position: relative
        width: 100%
        overflow: hidden
        .swiper-slide img
          width 100%
      .recommend-list
        .list-title
          height: 65px
          line-height: 65px
          text-align: center
          font-size: $font-size-medium
          color: $color-theme
        .item
          display: flex
          box-sizing: border-box
          align-items: center
          padding: 0 20px 20px 20px
          .icon
            flex: 0 0 60px
            width: 60px
            padding-right: 20px
          .text
            display: flex
            flex-direction: column
            justify-content: center
            flex: 1
            line-height: 20px
            overflow: hidden
            font-size: $font-size-medium
            .name
              margin-bottom: 10px
              color: $color-text
            .desc
              color: $color-text-d
      .loading-container
        position: absolute
        width: 100%
        top: 50%
        transform: translateY(-50%)
</style>
